Bhaskara and Panigrahi [1]} have defined a global measure of entanglement as the sum of generalised concurrence corresponding to all the bi-partitions for a system using Lagrange's identity and showed that the concurrence of each bi-partition for a pure state can be quantified using wedge product of post-measurement vectors in the Hilbert space of the subsystems. This measure was shown to match with the I-concurrence [2]}, an extension of concurrence for multiparticle pure states that provides a faithful quantification of entanglement across any bi-partition.
